mpc8250 Freescale Semiconductor, Inc, mpc8250 Datasheet - Page 13
mpc8250
Manufacturer Part Number
mpc8250
Description
Mpc8250 Powerquicc Ii Integrated Communications Processor
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC8250.pdf
(60 pages)
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Note that although the specifications generally reference the rising edge of the clock, the following AC
timing diagrams also apply when the falling edge is the active edge.
Figure 3
Freescale Semiconductor
1
FCC output signals
FCC output signals
Timings are measured at the pin.
sp18a
sp18b
Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN.
sp20
sp22
Note: When GFMR[TCI] = 0
Note: When GFMR[TCI] = 1
Max
FCC input signals
Spec Number
shows the FCC external clock.
Serial ClKin
sp19a
sp19b
sp21
sp23
Min
TDM inputs/SI
SCC/SMC/SPI/I2C inputs—internal clock (NMSI)
SCC/SMC/SPI/I2C inputs—external clock (NMSI)
PIO/TIMER/IDMA inputs
sp16b
Table 8. AC Characteristics for CPM Inputs
Figure 3. FCC External Clock Diagram
MPC8250 Hardware Specifications, Rev. 1
Characteristic
sp36b/sp37b
sp17b
66 MHz 83 MHz 66 MHz 83 MHz
1
15
20
10
Setup (ns)
5
Electrical and Thermal Characteristics
sp36b/sp37b
12
16
4
8
12
0
5
3
Hold (ns)
10
0
4
3
13